Third to joseph c



(No Model.)

J. P. GOSTIGAN.

PIPE JOINT.

No. 437,915. Patented Oct. 7, 1890.

' WITNESSES:

UNITED STATES PATENT OFFICE.

JOSEPH PATRICK COSTIGAN, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE- THIRD TO JOSEPH O, HENRY, OF SAME PLACE.

PIPE-JOINT.

SPECIFICATION forming part of Letters Patent No. 437,915, dated October 7, 1890.

Application filed November 19, 1889 Serial No. 330,923- (No model.)

To all whom it may concern: of any section may be adjusted at will. It is Beitknown thatI, JOSEPH PATRICK OOSTI- often necessary in the case of a section carry- GAN, a citizen of the United States, residing at ing a branch that the position of the branch St. Paul, in the county of Ramsey and State of shall be capable of a nicety of adjustment 5 Minnesota, have invented certain new and with reference to a fixed section. In pipeuseful Improvements in Pipe-Joints; and I joints as commonly constructed such adjustdo declare the following to be a full, clear, and ment is limited to a certain number of predeexact description of the invention, such as termined positions. The feature of special will enable others skilled in the art to which importance in this construction is that the to it appertains to make and use the same, refsections may be turned through the whole erence being had to the accompanying drawcircle of three hundred and sixty degrees ings, and to the figures of reference marked without disengagement, there being butone thereon, which form a part of this specificapoint at which the sections can be uncoupled.

tion. The invention is illustrated in the accom- 6 r 5 ThlS invention is especially applicable to panying drawings, in which such pipes as are commonly used for the con- Figure 1 is a perspective view of the ad aveyance of water or gas and the like, in which cent ends of two sections constructed in acthe adjacent pipe-sections are united by cordance with my improvement; and Fig. 2 is means of a bell and spigot joint. a cross-section of the entering section, show- 20 The invention is a modification of the form ing the joint.

of joint described in my application, Serial In the drawings, 1 represents the section No. 305,902, filed April 2,1889; and like that provided with a bell 2, into which the end of it consists in the improved form of the adjathe other section 3 is to be inserted. The incent ends of the sections whereby they may terior of the bell is of somewhatlarger diame- 25 be placed in position and retained relatively ter than the general outside diameter of the to each other without the assistance of calkpipe, and about half-way from the inner to mg or packing, whereby the apertures in any the outer end of the bell is provided a flange two adjacent sections are always concentric 4, extending around the interior and having without the necessity of special adjustment its outer circumference of the same diameter 0 for that purpose, whereby the strain of reor slightly greater diameter than that of the taining the parts in relative longitudinal poend of the adjacent section. The flange at is sition shall be borne by the pipe-sections dicut away in several places-three or more rectly and not by the packing, whereby as shown at 5, 6, and 7, the said openings beeither section may be freely turned to any eX- ing of varying width. 5 35 tent with reference to the other sections be- The end of the entering section 3 is profore calking without risk of uncoupling, and vided with peripheral lugs 8, 9, and 10, corwhereby the packing not only locks the secresponding in position and width with the tions, but is self-locking, thus making a peropenings 5, 6, and 7, respectively. When the fectly-tight joint, and wholly preventing the entering section is so turned that its lugs will 4 separation of the sections by any strain, thus register with their corresponding openings, making the joint of as great strength as any the lugs pass through the same, and being part of the pipe, and in the detailed conturned in either direction engage behind the struction hereinafter more fully set forth. flange, so that the two sections cannot be The essential characteristic features of the separated by any accidental displacement 45 construction of this invention are that the and must be turned through the whole three adjacent pipe-sections may be put together hundred and sixty degrees before they can in any number and will remain in proper be uncoupled. One section can thus be ad relative position longitudinally before paokjusted to any position with reference to the ing, the latter not being essential to the reother while still retained immovable from Ice 50 taining of the sections together, and when so longitudinal displacement. Moreover, the placed the relative circumferential position flange within the bell and the several lugs upon the end of the entering section co-operate to center the two section-s, and no special! adjustment for this purpose is required.

The joint is calked by pouring in melted lead or similar substance, the mouth of the bell being temporarily closed except at one point for this purpose. The calkingmaterial flows through the openings and around the lugs, filling the entire space on both sides of the flange except that occupied by the lugs, and also filling the openings, by which means the bodies of calking material on each side of the flange are united. The two sections are firmly locked in place, and the peculiar form assumed by the calking materialprevents its displacement.

I claim as my invention 1. In a joint for pipes, a pipe-section having abell'at one extremity, an annular flange within the bell, having openings of varying width therethrough, and a continuous annular space behind said flange, in combination with an entering pipe-section having exterior lugs corresponding in peripheral position and width; with said openings, respectively, and

adapted to pass through said openings and enter and turn axially within said annular space to any, extent, substantially as set forth.

2. In a joint for pipes, a pipe-section havin g-a bell atone extremity, an annular flange formed within said bell intermediate between the mouth of the bell and its bottom, whereby annular spaces are formed behind and in front of said flange, said flange having open- .ings of varying widththerethrough, in com- 'bination with an adjacent entering pipe-section having exterior lugs corresponding in peripheral position and width with said openings, respectively, and adapted to enter through said openings the annular space behind said flange, engage with the shoulder formed by said flange, and turn axially in JOSEPH PATRICK COSTIGAN.

WVitnesses:

WALLED H oLooMB, F. W. LANE. 

